India is gearing up to join the quantum satellite race with the goal of creating a hack-proof communication network. The National Quantum Mission (NQM) is at the forefront of this initiative, aiming to launch a quantum satellite within the next 2-3 years. This satellite will play a crucial role in establishing a secure quantum communications network across the country.
A quantum satellite is a satellite that uses quantum physics to communicate between space and Earth, and to secure information. Quantum satellites use quantum key distribution (QKD) to securely share a secret key between two parties, which can then be used to encrypt and decrypt messages. The security of QKD is based on quantum mechanics, making it resistant to hacking and eavesdropping.
Ajai Chowdhry, Co-founder of HCL and Chairman of the Mission Governing Board for the National Quantum Mission (NQM), told businessline, “Satellite-based communication will be required for securing country-wide or international communication. The Department of Space is planning to launch a quantum satellite in 2-3 years for quantum communications.”
The NQM has established four Section 8 companies, also known as not-for-profit entities, to focus on different verticals of quantum technologies. These Thematic Hubs (T-Hubs) are set up within premier academic institutions and national research and development labs. Below are the four verticals:
- Quantum Computing: Developing intermediate-scale quantum computers with 50-1000 physical qubits.
- Quantum Communication: Establishing satellite-based secure quantum communications and inter-city quantum key distribution.
- Quantum Sensing & Metrology: Creating high-sensitivity magnetometers and atomic clocks for precision timing.
- Quantum Materials & Devices: Designing and synthesizing quantum materials for fabrication of quantum devices.
These hubs aim to seed, nurture, and scale up scientific and industrial R&D in quantum technologies, making India a leader in this field.
Key Points of Quantum Satellite
Key Points of Quantum Satellite
- Quantum Key Distribution (QKD): The satellite will use QKD technology to transfer encrypted information securely.
- Complementary to Optical Fibers: While optical fibers are limited to 100-250 km, satellites can transfer quantum data over much larger distances.
- Geographical Advantage: India's diverse geography, including locations like Hanle in Ladakh, offers unique advantages for setting up quantum communication ground stations.
- Global Collaboration: India aims to develop satellite-based secure quantum communications between ground stations over a range of 2,000 km within the country and internationally.
This initiative positions India as a key player in the global quantum communications race, enhancing the security and reliability of communication networks.
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